Previously, I wrote about building a battery for my portable radio operations. This project has been a long and agonising one. Batteries are really difficult, and I spent a good chunk of June, July and August thinking about them. The Winning Design As I discussed in that last blog post, the architecture I settled upon was: I’ve learned quite a lot, made a large number of wrong assumptions and joined a lot of dots in my head as this has gone on. I’ve also made a large number of observations that will be helpful to other people interested in battery powered radio operation. …

This post is part of [tj]’s blog more in June challenge. You should join us and take part - just make 4 posts in June! As part of the general move to do more radio / do radio in a field, I’ve been doing radio in a field instead of preparing for it. This laptop was first set up and somewhat extensively tested at home, and then used in the field to prove it worked. …

This post is part of [tj]’s blog more in June challenge. You should join us and take part - just make 4 posts in June! As part of the general move to do more radio / do radio in a field, I’ve been doing radio in a field instead of preparing for it. Here’s a breakdown of the portable station, and what I’ve been doing with it. Radio My Radio is a Yaesu FT-891. …

This post is part of [tj]’s blog more in June challenge. You should join us and take part - just make 4 posts in June! As part of the general move to do more radio / do radio in a field, I’m configuring a raspberry pi to be a permanent companion to my radio. One challenge of the pi is the lack of any human interface equipment. In the past I’ve used 5" waveshare touchscreens and more fo amateur radio on a pi, but they just don’t cut it. …

This post is part of [tj]’s blog more in June challenge. You should join us and take part - just make 4 posts in June! As part of the general move to do more radio / do radio in a field, I’m configuring a raspberry pi to be a permanent companion to my radio. One challenge of the pi is the lack of an RTC, and this isn’t something I’m particularly fussy about fixing with dedicated hardware - typically it’s quite expensive. …